Digital Commons Network^™

A Methodology For The Design And Optimization Of Information Processing Systems, J. F. Nunamaker

Department of Computer Science Technical Reports

No abstract provided.

Consequences Of Certain Data Errors In The Transportation Planning Process., Ralph Wildy Zimmer

JTRP Technical Reports

No abstract provided.

Predicting Pavement Performance Using Time-Dependent Transfer Functions : Informational Report, Robert Elston Boyer

JTRP Technical Reports

No abstract provided.

Sensitivity Analysis Of Various Cost Elements In Flexible Pavement Design, Eldon J. Yoder, Farideh Ramjerdi, William Louise Grecco

JTRP Technical Reports

No abstract provided.

A Disaggregate Analysis Of Urban Travel Behavior, Edward J. Kannel

JTRP Technical Reports

No abstract provided.

Mechanism For Compaction And Response Of Kaolinite : Final Report, Ralph Jerome Hodek

JTRP Technical Reports

No abstract provided.

Changing Characteristics Of High Accident Drivers Over A Five Year Period, John Earl Goodson

JTRP Technical Reports

No abstract provided.

An Investigation Into The Gradation Variability Of Aggregates Used In Bases, James T. Parson

JTRP Technical Reports

No abstract provided.

Toward Accident Reduction Innovations In Driver Education, Michelle Shapiro

JTRP Technical Reports

No abstract provided.

Retarders For Concrete And Their Effects On Setting Time And Shrinkage : Interim Report, Yasuhiko Yamamoto

JTRP Technical Reports

No abstract provided.

Thermally Insulated Test Road: State Road 26 Performance And Temperature Prediction Studies : Progress Report No. 2, Maurice M. Bowers

JTRP Technical Reports

No abstract provided.

Experimental Stress Analysis Of Refrigerant Compressor, R. S. Lang

International Compressor Engineering Conference

No abstract provided.

Improvement In Fatigue Behavior By Overloading, B. M. Hillberry, J. F. Hamilton

International Compressor Engineering Conference

No abstract provided.

Some Practical Applications Of Modern Compressor Valve Technology, D. Woollatt

International Compressor Engineering Conference

No abstract provided.

Criteria For The Design Of Pressure Transducer Adapter Systems, J. P. Elson, W. Soedel

International Compressor Engineering Conference

No abstract provided.

Multispectral Data Compression Through Transform Coding And Block Quantization, P. J. Ready, P. A. Wintz

LARS Technical Reports

Transform coding and block quantization techniques are applied to multispectral data for data compression purposes. Two types of multispectral data are considered, (1) aircraft scanner data, and (2) digitized satellite imagery. The multispectral source is defined and an appropriate mathematical model proposed.

Two error criteria are used to evaluate the performance of the transform encoder. The first is the mean square error between the original and reconstructed data sets. The second is the performance of a computer implemented classification algorithm over the reconstructed data set. The total mean square error for the multispectral vector source is shown to be the …

Automatic Classifications Of Soils And Vegetation With Erts-1 Data, David Landgrebe

LARS Technical Reports

ERTS-A was successfully launched to become ERTS-1 on July 23, 1972. This was an historic event, though only a beginning, for it climaxed a long effort by many people to conceive, design, and bring in to being such a data - gathering instrument. In parallel with this effort research had been under way to find methods to analyze data from such an instrument. One part of this latter effort was a search for ways to analyze such data by computing machine. These would be needed for problems requiring very rapid analysis or high data throughput, or both. It was only …

Data Processing Ii: Advancements In Large-Scale Data Processing Systems For Remote Sensing, David Landgrebe

LARS Technical Reports

In the preceding paper, Dr. Swain described some of the research activities in Data Analysis techniques carried out at LARS/Purdue this past year. This paper continues by summarizing some results obtained from additional data processing research tasks now under study there. Time and space do not permit details. Full descriptions of these projects are reported in LARS reports and in papers in the open literature.

These studies fall into three categories: (1) an examination of the suitability of several sensor types with regard to producing data required for multispectral machine analysis; (2) various types of data preprocessing necessary to prepare …

Notes Of Image Correlation And Registration System Improvements, Stanton Yao

LARS Technical Reports

Investigation has been conducted into means of improving the image correlator and overlay function portions of the LARS image registration system. The fast Fourier transform correlator was analysed in detail and a modified version was programmed and tested. More reliable and accurate correlation has been achieved on both multispectral and multitemporal scanner imagery and Apollo 9 digitised multispectral photography. A quadratic overlay function was developed which uses local correlation checkpoints to interpolate the required overlay shifts between checkpoints. these improvements are described in the memo. The modified correlator is checked out and ready for inclusion in the registration system. More …

Pattern Recognition: A Basis For Remote Sensing Data Analysis, Philip H. Swain

LARS Technical Reports

Pattern recognition plays a central role in numerically oriented remote sensing systems. It provides an automatic procedure for deciding to which class any given ground resolution element should be assigned. The assignment is made in such a manner that on the average correct classification is achieved.

This information note describes briefly the theoretical basis for the pattern-recognition-oriented algorithms used in LARSYS, the multispectral data analysis software system developed by the Laboratory for Applications of Remote Sensing (LARS).

Measurements Program In Remote Sensing, Leroy F. Silva

LARS Technical Reports

The measurements program at LARS/Purdue has been concerned with five basic research areas during 1971. These areas are (1) the influence of haze layers upon remotely sensed surface properties, (2) electrical methods of soil moisture measurement, (3) thermographic studies of vegetation under nutritional stress, (4) improved field spectroradiometry, and (5) biological spectrophotometry.

All of the projects have risen out of problems generated from the overall laboratory mission. the emphasis in the paper is on instrumentation and techniques; whereas, related data and results on specific projects will be reported elsewhere. Each of the subject areas will be discussed individually.

Utilizing Remote Multispectral Scanner Data And Computer Analysis Techniques, Philip N. Leblanc, Christian J. Johannsen, Joseph E. Yanner

LARS Technical Reports

This research was designed to study the ability of present automatic computer analysis techniques with the use of multispectral scanner data to differentiate land use categories represented in a complex urban scene and in a selected flightline. An airborne multispectral scanner was used to collect the visible and reflective infrared data.

A small subdivision near Lafayette, Indiana was selected as the test site for the urban land use study. Multispectral scanner data were collected over the subdivision on May 1, 1970 from an altitude of 915 meters. The data were collected in twelve wavelength bands from 0.40 to 1.00 micrometers …

Valve Stress Measurements And Interpretation, J. Adams, J. F. Hamilton

International Compressor Engineering Conference

No abstract provided.

End Face Seals For Air-Conditioning Compressors, J. W. Abar

International Compressor Engineering Conference

No abstract provided.

Dynamic Measurements In Reciprocating Refrigerant Compressors, C. F. Speich

International Compressor Engineering Conference

No abstract provided.

Oil Circulation-Its Effects On Compressor Capacity, Theory And Experiment, K. W. Cooper, A. G. Mount

International Compressor Engineering Conference

No abstract provided.

Investigation Of The Thermodynamics Of Reciprocating Compressors, O. Jensen

International Compressor Engineering Conference

No abstract provided.

Compressor Noise Control, G. M. Diehl

International Compressor Engineering Conference

No abstract provided.

Design Of Oil-Less Compressors And Vacuum Pumps, W. Meece

International Compressor Engineering Conference

No abstract provided.

Design And Operating Characteristics Of The Zimmern Single Screw Compressor, Bernard Zimmern, Ganshyam C. Patel

International Compressor Engineering Conference

No abstract provided.